Photo-induced intramolecular electron transfer and intramolecular vibrational relaxation of rhodamine 6G in DMSO revealed by multiplex transient grating spectroscopy

被引：2

作者：

Jiang Li-Lin ^{[1
]}

Liu Wei-Long ^{[2
]}

Song Yun-Fei ^{[2
]}

Sun Shan-Lin ^{[3
]}

机构：

[1] Hezhou Univ, Sch Mech & Elect Engn, Hezhou 542800, Peoples R China

[2] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

[3] Guilin Univ Aerosp Technol, Dept Elect Engn, Guilin 541004, Peoples R China

来源：

CHINESE PHYSICS B | 2014年 / 23卷 / 10期

基金：

中国国家自然科学基金;

关键词：

photo-induced intramolecular electron transfer; intramolecular vibrational relaxation; excited state; multiplex transient grating; STIMULATED RAMAN-SPECTROSCOPY; CHARGE-RECOMBINATION DYNAMICS; EXCITED-STATE DYNAMICS; REAL-TIME; ENERGY REDISTRIBUTION; DONATING SOLVENTS; MOLECULES; PHASE; COMPLEXES; LIQUIDS;

D O I：

10.1088/1674-1056/23/10/107802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Photo-induced intramolecular electron transfer (PIET) and intramolecular vibrational relaxation (IVR) dynamics of the excited state of rhodamine 6G (Rh6G(+)) in DMSO are investigated by multiplex transient grating. Two major components are resolved in the dynamics of Rh6G(+). The first component, with a lifetime tau(PIET) = 140 fs-260 fs, is attributed to PIET from the phenyl ring to the xanthene plane. The IVR process occurring in the range tau(IVR) = 3.3 ps-5.2 ps is much slower than the first component. The PIET and IVR processes occurring in the excited state of Rh6G(+) are quantitatively determined, and a better understanding of the relationship between these processes is obtained.

引用

页数：5

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